/*
* Copyright (c) 2025 Huawei Device Co., Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including but not limited to the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to provide persons with access to the Software
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGE OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/

/**
 * @description 基于web components实现分栏组件导航栏标签
 */
export class NavbarComponent extends HTMLElement {
    private _property: string[];
    private _styleElement: HTMLStyleElement | null;
  
    constructor() {
      super();
      this._styleElement = null;
      this._property = [];
    }
  
    connectedCallback(): void {
      this._attachStyles();
    }
  
    static get observedAttributes(): string[] {
      return [];
    }
  
    attributeChangedCallback(name: string, oldValue: string | null, newValue: string | null): void {
      if (this._property.includes(name) && oldValue !== newValue) {
        this._attachStyles();
      }
    }
  
    private _attachStyles(): void {
      if (this._styleElement) {
        this._styleElement.remove();
      }
  
      const style = document.createElement('style') as HTMLStyleElement;
      style.textContent = '';
      this._styleElement = style;
      document.head.appendChild(style);
    }
  }
  
  if (!customElements.get('multi-nav-bar')) {
    customElements.define('multi-nav-bar', NavbarComponent);
  }